package com.tanhua.dubbo.api;

import com.tanhua.model.enums.CommentType;
import com.tanhua.model.mongo.Comment;
import com.tanhua.model.mongo.Movement;
import com.tanhua.model.mongo.Video;
import org.apache.dubbo.config.annotation.DubboService;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.FindAndModifyOptions;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

import java.util.ArrayList;
import java.util.List;

@DubboService
public class CommentApiImpl implements CommentApi {
    @Autowired
    MongoTemplate mongoTemplate;

    //分页查询
    @Override
    public List<Comment> findComments(String movementId, CommentType commentType, Integer page, Integer pagesize) {
        //1、构造查询条件
        Query query = Query.query(Criteria.where("publishId").is(new ObjectId(movementId)).and("commentType")
                .is(commentType.getType()))
                .skip((page - 1) * pagesize)
                .limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        //2、查询并返回
        List<Comment> commentList = mongoTemplate.find(query, Comment.class);
        return commentList;
    }

    //发布评论，并获取评论数量
    @Override
    public Integer save(Comment comment) {
        //1、查询动态
        Movement movement = mongoTemplate.findById(comment.getPublishId(), Movement.class);
        //2、向comment对象设置被评论人属性
        if (movement != null) {
            comment.setPublishUserId(movement.getUserId());
        }
        //3、保存到数据库
        mongoTemplate.save(comment);
        //4、更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", 1);
        } else if (comment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", 1);
        } else {
            update.inc("loveCount", 1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Movement modify = mongoTemplate.findAndModify(query, update, options, Movement.class);
        //5、获取最新的评论数量，并返回
        return modify.statisCount(comment.getCommentType());
    }

    //判断comment数据是否存在
    @Override
    public Boolean hasComment(String movementId, Long userId, CommentType commentType) {
        Criteria criteria = Criteria.where("userId").is(userId)
                .and("publishId").is(new ObjectId(movementId))
                .and("commentType").is(commentType.getType());
        Query query = Query.query(criteria);
        return mongoTemplate.exists(query, Comment.class); //判断数据是否存在
    }

    //删除
    @Override
    public Integer delete(Comment comment) {
        //1、删除Comment表数据
        Criteria criteria = Criteria.where("userId").is(comment.getUserId())
                .and("publishId").is(comment.getPublishId())
                .and("commentType").is(comment.getCommentType());
        Query query = Query.query(criteria);
        mongoTemplate.remove(query, Comment.class);
        //2、修改动态表中的总数量
        Query movementQuery = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", -1);
        } else if (comment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", -1);
        } else {
            update.inc("loveCount", -1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Movement modify = mongoTemplate.findAndModify(movementQuery, update, options, Movement.class);
        //5、获取最新的评论数量，并返回
        return modify.statisCount(comment.getCommentType());
    }

    @Override
    public int count(String messageId, CommentType comment) {
        if (messageId != null) {
            Criteria criteria = Criteria.where("publishId").is(new ObjectId(messageId))
                    .and("commentType").is(comment.getType());
            Query query = Query.query(criteria);
            long count = mongoTemplate.count(query, Comment.class);
            return (int) count;
        }
        return 0;
    }

    @Override
    public List<Comment> findComments1(Long userId, CommentType comment, Integer page, Integer pagesize) {
        //构造查询条件
        Query query = Query.query(Criteria.where("publishUserId").is(userId).and("commentType")
                .is(comment.getType()))
                .skip((page - 1) * pagesize)
                .limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        //查询并返回
        return mongoTemplate.find(query, Comment.class);
    }


    /**
     * 查询点赞列表
     *
     * @param page
     * @param pagesize
     * @param publishUserId
     * @return
     */
    @Override
    public List<Comment> findCommentsList(Integer page, Integer pagesize, Long publishUserId, CommentType commentType) {
        Criteria criteria = Criteria.where("publishUserId").is(publishUserId).and("commentType").is(commentType.getType());
        Query query = Query.query(criteria).skip((page - 1) * pagesize).limit(pagesize).with(Sort.by(Sort.Order.desc("created")));
        return mongoTemplate.find(query, Comment.class);
    }

    /**
     * 发布视频评论
     *
     * @param videoComment
     * @return
     */
    @Override
    public Integer saveVideoComment(Comment videoComment) {
        //1、查询动态
        Video video = mongoTemplate.findById(videoComment.getPublishId(), Video.class);
        //2、向comment对象设置被评论人属性
        if (video != null) {
            videoComment.setPublishUserId(video.getUserId());
        }
        //3、保存到数据库
        mongoTemplate.save(videoComment);
        //4、更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(videoComment.getPublishId()));
        Update update = new Update();
        if (videoComment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", 1);
        } else if (videoComment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", 1);
        } else {
            update.inc("loveCount", 1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Video modify = mongoTemplate.findAndModify(query, update, options, Video.class);
        //5、获取最新的评论数量，并返回
        return modify.statisCount(videoComment.getCommentType());
    }

    /**
     * 更新并返回评论点赞数
     *
     * @param commentId
     * @return
     */
    @Override
    public Integer update(String commentId) {
        Criteria criteria = Criteria.where("id").is(commentId);
        Query query = Query.query(criteria);
        Update update = new Update();
        //Comment中likeCount+1
        update.inc("likeCount", 1);
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        //返回点赞数
        return modify.getLikeCount();
    }


    @Override
    public Comment findById(String commentId) {
        return mongoTemplate.findById(commentId, Comment.class);
    }

    @Override
    public Integer saveVideo(Comment comment) {

        //1、查询动态
        Video video = mongoTemplate.findById(comment.getPublishId(), Video.class);
        //2、向comment对象设置被评论人属性
        if (video != null) {
            comment.setPublishUserId(video.getUserId());
        }
        //3、保存到数据库
        mongoTemplate.save(comment);
        //4、更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", 1);
        } else if (comment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", 1);
        } else {
            update.inc("loveCount", 1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Video modify = mongoTemplate.findAndModify(query, update, options, Video.class);
        //5、获取最新的评论数量，并返回
        return modify.statisCount(comment.getCommentType());

    }

    //视频取消点赞
    @Override
    public Integer deleteVideo(Comment comment) {
        Criteria criteria = Criteria.where("publishId").is(comment.getPublishId())
                .and("userId").is(comment.getUserId())
                .and("commentType").is(comment.getCommentType());
        Query query = Query.query(criteria);
        //删除comment表中的数据
        mongoTemplate.remove(query, Comment.class);
        //2.修改动态表中的总数量
        Query videoId = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", -1);
        }
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true); //获取更新后的最新数据
        Video modify = mongoTemplate.findAndModify(videoId, update, options, Video.class);
        //返回最新的点赞数量 并返回
        return modify.statisCount(comment.getCommentType());
    }

    /**
     * 取消点赞更新
     * @param commentId
     * @return
     */
    @Override
    public Integer disLike(String commentId) {
        Criteria criteria = Criteria.where("id").is(commentId);
        Query query = Query.query(criteria);
        Update update = new Update();
        //Comment中likeCount+1
        update.inc("likeCount", -1);
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        //返回点赞数
        return modify.getLikeCount();
    }

}
